Demos: fix style on listview-linkbar demo
(cherry picked from commit 6d14e13e06ffae01c266ca1107e349d1a292fd2d)
Listview: linkbar demo scroll handler not working and updating to 1.4

Fixes gh-7129
Closes gh-7131

(cherry picked from commit 58be1f774f99650f36e02bb2bd5804551c1d2ae2)